INO thermodynamic properties and ultraviolet spectrum | Zendy

Forte E. | Zendy; Hippler H. | Zendy; Van Den Bergh H. | Zendy

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INO thermodynamic properties and ultraviolet spectrum

Author(s) -

Forte E.,

Hippler H.,

Van Den Bergh H.

Publication year - 1981

Publication title -

international journal of chemical kinetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 68

eISSN - 1097-4601

pISSN - 0538-8066

DOI - 10.1002/kin.550131203

Subject(s) - chemistry , ultraviolet , equilibrium constant , absorption spectroscopy , analytical chemistry (journal) , absorption (acoustics) , organic chemistry , optoelectronics , physics , quantum mechanics , acoustics

The equilibrium I 2 ( g ) + 2NO( g ) = 2INO( g ) has been studied at room temperature by ultraviolet absorption spectroscopy. The equilibrium constant has been measured as K p = (2.7 ± 0.3) × 10 −6 atm −1 at 298 K. Third‐law calculations lead to Δ H ° f ,298 (INO) = 120.0 ± 0.3 kJ/mol. The relative absorption spectrum of INO has been measured between 225 and 300 nm. Quantitative measurements gave ϵ(λ max = 238 nm) = (1.79 ± 0.5) × 10 4 L/mol·cm and ϵ(410 nm) = 234.7 ± 21 L/mol·cm.

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